Greatest Common Factor of 19, 12, 78, 721

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

• Greatest Common Factor of 19, 12, 78, 721 by common division method
• Greatest Common Factor of 19, 12, 78, 721 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 19

List of positive integer factors of 19 that divides 19 without a remainder.

1,19

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 721

List of positive integer factors of 721 that divides 721 without a remainder.

1,7,103,721

Greatest Common Factor

We found the factors 19,12,78,721 . The biggest common factor number is the GCF number.
So the greatest common factor 19,12,78,721 is 1.

Here are some samples of GCF of two or more Numbers calculations.

• GCF of 18, 18, 43, 221
• GCF of 20, 10, 94, 404
• GCF of 55, 47, 37, 774
• GCF of 17, 74, 47, 740
• GCF of 70, 92, 14, 858

1. What is the GCF of 19, 12, 78, 721?

Answer: GCF of 19, 12, 78, 721 is 1.

2. How to Find the GCF of 19, 12, 78, 721

Answer: Greatest Common Factor(GCF) of 19, 12, 78, 721 = 1

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(19, 12, 78, 721) = 1.